JPS61186589A - Apparatus for heat treatment of rope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rope heat treatment device for heating a rope after it has been made by twisting a plurality of strands. It is something.

(Prior art) Conventionally, as this type of heat treatment apparatus, there is one example, for example, JP-A-58.
- As shown in Publication No. 70728, a rope made by twisting a plurality of strands is passed through a steam chamber and heat-treated while being kept under tension to the extent that it does not loosen. There is.

In this conventional heat treatment apparatus, a plurality of pairs of guide rollers are arranged in the steam chamber, and the rope is made to reciprocate a plurality of times between the guide rollers, thereby exposing the rope to the steam in the steam chamber for a long period of time. It looks like this.

(Problems to be Solved by the Invention) However, in the conventional heat treatment apparatus as described above,
When each guide roller is arranged in a fixed state, there is a problem that the rope comes into frictional contact with the outer circumferential surface of the guide roller as it is transported, causing the rope to become fluffy and the guide roller to wear out.

In order to solve such problems, a configuration has also been proposed in which the guide roller is rotatably supported by a pair of support shafts fixedly arranged within the steam chamber. However, with this configuration, when the rope is heat-treated by the steam in the steam chamber, the rope shrinks and becomes tensioned between the corresponding guide rollers, causing each guide roller to become taut. As with the roller fixing structure described above, there still remains the problem that the rope becomes fuzzed and the guide roller wears out due to pressure contact with the support shaft and a locked state.

To this end, a configuration has also been proposed in which bearings are interposed between each guide roller and the support shaft to ensure smooth rotation of the guide rollers. However, according to this configuration, it is necessary to provide a large number of bearings corresponding to each guide roller, resulting in a problem that the configuration is complicated and the manufacturing cost of the device increases. In addition, in this configuration, the bearings of each guide roller are exposed directly to the steam in the steam chamber, so they are susceptible to rust, and all bearings must be replaced with new ones every two to three months. There are also problems.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and includes a steam chamber having a rope inlet and an outlet, and a rope parallel to the steam chamber. A pair of roller support shafts arranged, a plurality of bearing members provided separately in the steam chamber to rotatably support both ends of each roller support shaft, and a shaft between the two roller support shafts. In order to allow the rope to reciprocate multiple times, a plurality of guide rollers each having a predetermined clearance on each support shaft are fitted and supported so as to be relatively rotatable and movable in a direction orthogonal to the axis. We are prepared.

(Function) Therefore, in the rope heat treatment apparatus of the present invention,
In the early stages of heating the rope, each guide roller rotates around the support shaft to transfer the rope. If the rope shrinks as the rope heat treatment progresses, the guide rollers rotate around the axis. The rope is moved slightly in the orthogonal direction and pressed 1' against the support shaft, and in this state, the guide roller and support shaft are rotated together between the bearing members to transfer the rope. Also, even during the heat treatment of the rope, there is no significant contraction in the rope between the guide rollers located near the lobe inlet of the steam chamber, so these guide rollers are free to rotate relative to each other around the support shaft. be done.

Therefore, the rope can be transferred smoothly without fuzzing of the rope or wear of the guide rollers. Furthermore, in the device of the present invention, since the bearing members that support both ends of the pair of support shafts are provided separately from the steam chamber, the bearing members are free from rust and can be used for a long period of time. .

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Now, FIG. 2.3 shows a net making machine equipped with the rope heat treatment apparatus of this embodiment. A cylinder (2) is supported rotatably around a horizontal axis on the left side of the base (1) of this net making machine, and a pitch voice (3
) are provided. One strand bobbin (4) is supported on the base (1) on the left side of the cylinder (2), and two strand bobbins (4) are supported inside the cylinder (2). A strand coil (6) formed by winding a strand (5) made of synthetic resin such as polyolefin is set on the bobbin (4).

Then, the 3 strands pulled out from each strand bobbin (4)
Wood strands (5) are guided through the cylinder (2) to the pitch voice (3), and as the cylinder (2) rotates, they are twisted together at the pitch voice (3) to form a single lobe (7). ).

A front capstan roller (8), a heat treatment device (9), and a rear capstan roller (10) are arranged on the base (1) on the right side of the pitch voice (3). The rope (7) made from three wooden strands (5) as described above is wound around the front capstan roller (8) multiple times and then introduced into the heat treatment device (9). The material is then heat-treated with steam while being maintained at a predetermined tension within the device (8). In addition, this heat treatment equipment (9
The rope (7) led out from the rope (7) is wrapped around the rear capstan roller (!0) multiple times, and after the attached moisture is evaporated by the residual heat of the rope (7) itself, it is made into a net as a product. It is led out of the aircraft.

Therefore, the details of the heat treatment apparatus (9) are as follows.
This will be explained in detail according to the drawings.

Now, in this device, the main steam chamber (
13) is formed, and a rope (7) is formed on both end plates (12).
) is formed with an inlet (10) and an outlet (15).The inlet (14) has an inlet labyrinth (1
6), and an outlet labyrinth (17) is provided at the outlet (15) to prevent steam in the main steam chamber (13) from leaking to the outside from the inlet (10) or the outlet (15). The main steam room (13
A pair of steam jet pipes (18) are installed at the upper part of the main steam chamber (
13), and a large number of steam ejection holes (18a) are formed at predetermined intervals in the longitudinal direction on its outer periphery. A steam supply pipe (18) is connected to each steam jet pipe (18) via a branch pipe (20), and a steam supply pipe (18) is connected to the main steam chamber (13) via the steam jet pipe (18). Steam at a predetermined temperature and pressure is supplied into the chamber.

A cylindrical enclosure (2I) is provided on the outer periphery of the outer shell (11).
is fixed, and the main steam body (1
3), a sealed auxiliary steam chamber (22) is defined. A steam supply port (23) is formed approximately in the center of the outer periphery and side surface of the enclosure (21), and the steam is supplied from the steam supply pipe (20) into the auxiliary steam chamber (22) through this steam supply port (23). Steam at a higher temperature and higher pressure than the steam is supplied into the steam chamber (13) to heat and maintain the steam in the main steam chamber (13) at a predetermined temperature. , the pressure in the main steam chamber (13) is 0.5k.
Relatively low-pressure, low-temperature steam with a pressure of 3.5 kg/cm' and a temperature of 150°C is supplied and sealed in the auxiliary steam chamber (22) at a pressure of 3.5 kg/cm' and a temperature of 150°C. The steam in the main steam chamber (13) is supplied to the steam chambers 127 to 128 suitable for the heat treatment of the lobe (7).
It is designed to be heated and maintained at ℃.

As shown in Fig. 1.4, safety valve connection ports (25) for the main steam chamber (13) are provided on both sides of the outer periphery of the outer shell (11).
A heat-sensitive port (2G), a pressure gauge mounting port (27), a thermometer mounting port (28), and a cold air blowing port (29) are formed to protrude through the enclosure (21), and the outer shell (11). A drain port (30) for the main steam chamber (13) is formed protruding through the enclosure (21) on the lower surface of the outer periphery. Furthermore, on both sides of the outer periphery of the enclosure (21), there are a safety valve connection port (31) for the auxiliary steam chamber (22), a heat sensitive port (32), a pressure gauge mounting port (33), and a thermometer mounting port (30). An auxiliary steam chamber (22) is formed protrudingly on the lower surface of the outer circumference of the enclosure (21).
) is formed in a protruding manner.

In the main steam chamber (13), support frames (38) are attached to the inner surfaces of both end plates (12), respectively. A pair of roller support shafts (37) are installed and supported between the side plates (36a) of each support frame (36) so as to extend in parallel in the front-rear direction. Both front and rear ends of each support shaft (37) are connected to both side plates (38) of the support frame (3B) via bearing members (38) on multiple sides.
a) rotatably supported and bearing members thereof (3 days)
is arranged in an isolated and sealed state in the main steam room (13).

In other words, as shown in FIG. 5, each bearing member (38) includes a cylindrical body (39) fixed through the side plate (38a), and a seal (40) at the outer end of the cylindrical body (38). ), a pair of seals (42), (43) and a spacer (40) are attached to the inner end of the cylindrical body (39).
The inner lid body (45) is attached through the inner lid body (45) to form a hermetically sealed structure. Two needle bearings (46) are interposed between the inner periphery of the cylindrical body (39) and the outer periphery of both ends of the roller support shaft (37). A thrust bearing (47) is installed between both end surfaces of the shaft (37).
is interposed with the ring (48). Therefore, there is no risk of steam in the main steam chamber (13) entering the needle bearing (4B) and thrust bearing (47) of each bearing member (3rd), and these bearings (4B) and (47) It can reliably prevent rusting.

Each roller support shaft (37) has a plurality of shafts (5 in the embodiment).
2) guide rollers (48) are fitted at their central cylindrical metal (50) and arranged in a stacked manner with spacers (51) interposed therebetween. Moreover, a predetermined distance (
In the embodiment, a clearance (52) of approximately 0.3 mm) is provided, and each guide roller (49) is connected to the support shaft (
relative rotation around the support shaft (37).
) can move in the left and right directions perpendicular to the axis. Then, from the inlet (10 to the main steam room (!3)
The rope (7) introduced inside is sequentially reciprocated around a plurality of guide rollers (48) between a pair of left and right roller support shafts (37), and is led out from the outlet (15).

As shown in Figure 1.4, both roller support shafts (37)
The guide rollers (4) on both front and rear ends of the
Six inspection holes (53) are formed on the outer circumferential surface of the outer body (11) to protrude through the enclosure (21), corresponding to the upper portions of the enclosure (21), and a lid is attached to the outer end of the six inspection holes (53). (54) is removably attached via a seal body (55). Then, with the lid (50) removed and the inspection port (53) opened, the rope (7) on the guide roller (48) can be untangled through the inspection port (53), and the roller support The shaft (37), bearing member (38), and guide roller (49) can be inspected and replaced.

Hereinafter, the operation of the rope heat treatment apparatus configured as described above will be explained.

Now, in this device, relatively low temperature and low pressure steam is supplied and sealed in the main steam chamber (13) having a rope inlet (14) and an outlet (15), and a sealed auxiliary steam chamber ( 22), high-temperature, high-pressure steam is supplied and sealed in the main steam chamber (13), and the steam in the main steam chamber (13) is heated and maintained at a temperature suitable for heat treatment of the rope (7).

The rope (7) introduced into the main steam chamber (13) from the inlet (10) of the main steam chamber (13) is connected to the plurality of guide rollers (43) between the pair of left and right roller support shafts (37). After being sequentially reciprocated, the rope (7) is led out from the outlet (15) and heat-treated by the steam in the main steam chamber (13).

At the initial stage of heating this rope (7), each guide roller (4
3) are freely rotated around the roller support shaft (37) to transfer the rope (7), and if the heat treatment of the rope (7) progresses and shrinkage occurs in the rope (7), , the guide roller (49) is drawn inward by the clearance (52) between the cylindrical metal (50) and the support shaft (37), and the cylindrical metal (50) and the support shaft (37) are mutually separated. The pair of bearing members (38) are crimped and in this state
The guide roller (48) and support shaft (37) are integrally rotated seven times in between, and the rope is transferred. Also, even during the heat treatment of this rope (7), the main steam chamber (13)
Between the guide rollers (49) on the front side located near the rope introduction port (14), the rope (7) does not undergo a large contraction, so those guide rollers (43) are not drawn inward. Therefore, it is freely rotated relative to the support shaft (37) independently of the rotating support shaft (37). Therefore, the guide roller (49) is not locked due to contraction of the rope (7), and the rope (7)
can be transferred smoothly.

In addition to the embodiments described above, the present invention can also be embodied by arbitrarily changing the structure of the bearing member and the like.

(Effects of the Invention) As described in detail above, the present invention allows each guide roller to rotate around the support shaft or integrally with the support shaft, regardless of whether or not the rope shrinks due to heat treatment. The rope can be smoothly transferred within the steam chamber without causing fuzz or wear of the guide rollers. Further, in this invention, since the bearing member that supports both ends of the pair of support shafts is provided separately from the A air chamber, there is no fear that this bearing member will rust, and it can be used for a long period of time.

[Brief explanation of the drawing]

Fig. ta is a partial cross-sectional view showing a rope heat treatment device embodying the present invention, Fig. 2 is a plan view showing the entire net making machine equipped with the heat treatment device, and Fig. 3 is the same net making machine. 4 is a longitudinal cross-sectional view of the heat treatment apparatus shown in FIG. 1, and FIG.
The figure is a partial cross-sectional view showing an enlarged view of the configuration of the roller support shaft and the support shaft of the guide roller. Explanation of symbols 5... Strand, 7... Rope, 9... Heat treatment device, 13... Main steam room,! 4...Introduction port, 1
5... Outlet. 37... Roller support shaft, 38... Bearing member, 46...
...Needle bearing, 47...Thrust bearing, 48...
・Guide roller, 52...Clearance.

Claims (1)

[Scope of Claims] A steam chamber having a rope inlet and outlet, a pair of roller support shafts arranged in parallel within the steam chamber, and both ends of each roller support shaft rotatably supported. For this purpose, a plurality of bearing members are provided separately in the steam chamber, and each support shaft is provided with a predetermined clearance so that the rope can be reciprocated multiple times between the two roller support shafts. A rope heat treatment device comprising a plurality of guide rollers that are fitted and supported so as to be rotatable and movable in a direction perpendicular to the axis.